| 摘要 |
PROBLEM TO BE SOLVED: To achieve weight saving by not mounting heavy parts such as a coil for tilt on the side of an objective lens holder constituted displaceably in a radial direction and a tracking direction and to perform tilt correction of an objective lens optical axis to a high-density information recording surface of an optical recording medium. SOLUTION: The objective lens driving device is equipped with a lens holder 2 for holding an objective lens 3 at a position facing an information recording surface 21a of the optical recording medium 21, suspension wires 5a to 5d one end of which fixed to the lens holder and extending in the direction almost parallel to the information recording surface. a suspension holder 6 for supporting one side of the lens holder by supporting the other end of the wire, and a magnetic circuit for driving the lens holder in a focus direction and in the tracking direction. A tilt correcting mechanism 30 for tilting the lens holder and the objective lens by driving forward and backward in the longitudinal direction at least two of the wires which are located inside a plane almost parallel to the information recording surface is provided. COPYRIGHT: (C)2004,JPO
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